length of domain name

Started by Prima, Dec 29, 2022, 12:02 PM

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PrimaTopic starter

Greetings, everyone!

Could you please assist me with a question? I am curious about the maximum length of a domain name. I have come across conflicting information, some sources say it is 63 characters while others suggest it could be up to 127 characters. I understand that shorter domain names are generally preferable, but I am still very interested in knowing. Thank you in advance for your help!


As per the rules, a domain name can have a maximum length of 63 characters (including periods) and can have up to 127 levels of subdivisions. However, the overall length of the complete name cannot exceed 255 characters.

The minimum length of a domain name is 2 characters, although some zones have a 3-character minimum requirement (BIZ, INFO, DE, SU), and certain domains like UA, TK, GQ, ML, GA, CF can have a minimum length of just one character.

A domain name should comprise alphanumeric characters (a-z, 0-9) and hyphens with no consecutive hyphens (with some exceptions). Alphabets are case-insensitive.

Domain names can include Latin letters or other national alphabets like Cyrillic while browsing in different languages.

A domain name comprises multiple parts separated by a period:

1. TLD (Top-level domain) like .com, .net, .org, etc. consists of general (gTLD), national (ccTLD), brand, geographic, and sponsored.

2. SLD (Second-level domain) includes the part between the TLD and LLD like example.com.

3. LLD (Lower-level domain) refers to the third-level domain or subdomain and consists of three parts separated by periods.

Each part has a maximum length of 63 characters with the potential for up to 127 levels of subdivisions. The total length of the complete name cannot exceed 255 characters.

Although a shorter name is usually preferred, there are some domains with a name length of 63 characters.